Post on 15-May-2015
description
INTRODUCTION TO PSYCHOLOGY
Perception
Perception
“Perception refers to the interpretation of what we take in through our senses. In terms of optical illusions this means our eyes.”
Simply put, our brains are tricked into seeing something which may or may not be real.
http://www.keele.ac.uk/depts/aa/widening/uniworld/webclub/rs/optical.htm
Factors that Influence
Perception The Object of Perception:
some things in our environment tend to attract attention
Backgrounds and Surroundingsour surroundings at the moment of perception will affect our perceptions
The Perceiverwe each bring unique experiences and personal points of view to each situation
In order to make sense of our world our brains try to see patterns or shapes that are recognizable. This principle is called
“grouping”.
http://www.keele.ac.uk/depts/aa/widening/uniworld/webclub/rs/optical.htm
The mind forms shapes that don't exist
http://psycharts.com/opt_illus.html
http://psycharts.com/opt_illus.html
Parallel Lines? http://psycharts.com/opt_illus.html
Embedded Images
http://psycharts.com/opt_illus.html
http://psycharts.com/opt_illus.html
2 dimensional chalk drawing
http://psycharts.com/opt_illus.html
http://psycharts.com/opt_illus.html
After a Necker cube is perceived from one perspective, it naturally tends to change to the other in about 3 seconds.
http://psycharts.com/opt_illus.html
• When you look at the top figure, your visual system will organize the elements into a box. The box will reverse, as in the Necker Cube illusion. The elements in the bottom figure have terminations and do not readily group into a box figure that shows reversals
http://dragon.uml.edu/psych/box_1.html
How fast do you switch?
http://psycharts.com/opt_illus.html
You will see it flip into a second staircase
• M.C. Escher used complex variations on this illusion to achieve some wonderful effects like showing representations of people walking in opposite directions, both descending. He also joined staircases into an appearance of infinite ascent/descent.
http://dragon.uml.edu/psych/stair.html
M.C. Escher
The shades of red are identical
The difference in the appearance is related to the influence of the
backgrounds. http://psycharts.com/opt_illus.html
Compare the shades of red…
http://psycharts.com/opt_illus.html
When you look at the figure you will see either a vase or two faces. If you continue to look, the figure will appear to shift to the alternative organization
Old Woman or Young Girl?
http://psycharts.com/opt_illus.html
Man/Woman
http://psycharts.com/opt_illus.html
Shimmerhttp://psycharts.com/opt_illus.html
Any movement you see is an illusion!
http://psycharts.com/opt_illus.html
http://psycharts.com/opt_illus.html
Straight Lines?
http://psycharts.com/opt_illus.html
http://www.at-bristol.org.uk/Optical/Hermann_main.htm
Hermann Grid
Impossible Triangleand Trident
http://psycharts.com/opt_illus.html
What is wrong with this sign?
http://www.keele.ac.uk/depts/aa/widening/uniworld/webclub/rs/optical.htm
One more…
Perspective is evoked in this image by the pattern, and the lines on the wall which converge on to a common point in the distance.
http://www.sapdesignguild.org/resources/optical_illusions/perspective.html & http://www.killsometime.com/illusions/Optical-Illusion.asp?Illusion-ID=36